Filled-sack-sewing apparatus



F. w. OSTROM AND I. F. WEBB.

FILLED SACK SEWING APPARATUS.

APPLICATION FILED lAN.24, 1918.

3 SHEETS-SHEET I.

Fyl.

and WITNESS T .frvm lf'lflafi A ITORNEY F. W. OSTROM AND I. F. WEBB.

FILLED SACK SEWING APPARATUS.

APPLICATION FILED JAN-24, 1918.

L 92 n 9 8 ml. AU dw w H m P Qm NW INVE/V TORS Eula/22 d ZQ Oar/am I raw/75 200M ATTORNEY WITNESS #66. ?W

F. W. OSTROM AND I. F. WEBB.

FILLED SACK SEWING APPARATUS.

APPLICATION FILED JAN.24, 1918.

1,387,069., PatentedAug.9,1921

- 3SHEETSSHEET3.

lA/VE/VTOBS lflfislmm/ and Inn/723 6 ATTORNEY I retest, QF'FJGE- VFREELAND w. os'rnoivi, ornnweialitewn IRvING'r. which, or'etIjzAhn'rH,

JERSEY, AssrenoRs To THE sinenn, MANUFACTURING coM'PA-NY, A some:

RATION or NEwJnRsnY.

rrLnnn-sacii-snwme ArrARA'Tn's.

To all whom it mag concern:

Be it known that we, FREELAN W. OSTROM and InvINe-FWVEnB, citizens of the United States, residing, respectively, at Newark, in

the county of Essex and State of New-Jersey, and Elizabeth, in the countyof Union and State or" New Jersey, have invented certain new and useful Improvements in Filled- Sack-Sewing Apparatus, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improved means for closing the'mouths of filled sacks by a line of stitchesand for conveying said sacks in an upright position under and past a sewing machine mounted on the maln frame of the sewin and conve in a) )aratus and has for-its object to, bythe employment of an automatically controlled stitch-forming mechanism and automatically controlledfineans for. holding in register the means ,forcontrolling thestitching operation with respect to the relativeadjustment of the carrier and the sewing'machine,'lessenthe cost of construction and effect increased production, toget er with the ;providing of a more conveniently operated'apparatus better adapted to the requirements of machines of the presentcharacter. I Y

In the accompanying drawings, which form a part of the specification, Figure 1 is a view in -frontfiside elevation of the present construction, the side guide-bar and con veyer-frameand carrier-belts slightly broken away, together with the electric switch-box in section. Fig. 2 is a plan View 01517116 present construction with a portion of the carrier belts and table-top broken away for a better understanding of the means employed for automatically controlling the seamiormation. Fig. 3 is;v a View] in. end elevation of Fig. 2., Fig. 4 isa view in elevation of the sewing machine belt shifting mechanism,'viewed in a direction opposite to that of Fig. 3, together with a portion of the sewing machine. Figs. ("g-and Gare views, in detail, ofgthe right and left hand I carrier-brackets; respectively, the former shown in section and the latter a plan view. Fig; 7 is a view, in detail,"of a portion of the conveyer motor-bracket, illustrating the I manner of securing it to the conveyer-frame'.

Fig. 8 is a fragmentary vijew ofthe means Specification Letters Patent.

employed for controlling theaction of the stitch-forming mechanism and forsuspendmg such action. Fig. 9; is a View, in detail, otcertain of theelements employed for actuat ng the carrier belts, later to be referredto.

Referring to the drawings, the machine Patented Aug. 9, "19 21. l i 7 Application filed January 24, 1918. Serial No. 213,504. I

chine, bracket 9having fixed to' it the sewing machine head 10. Upon the bracket 11, mounted on said table top, is suitably secured the electric motor 12 controlled by the electric switch 12, said motor acting,

through the belt connection 13, to operate said sewing machine. elrnnents herein employed are wen understood it is not deemed necessary to specificallyrefer to the same.

As the stitch-forming The conveyer "frame '14 is sec'ured at'irearly its opposite ends by screws, as '15, to the conyeyeii-frame brackets 16 and .17 which, in. V

turn, are secured'by screws, as 18 ,t0 the slid+ ing nuts 19 and 20, respectively, ,the'tighten ing of thescr'ews -18 -effectingasliding fit:

between the surfaces 21 and '22 ofthe nuts 19 and 20,- respectively, with theisurfaces 23 and 24: of the standards 1 and 2, andbetween the surfaces 25 and 2,6 of said standards and the surfaces 27 and ea er the brackets 16 and 1? respectively. i i 1 The electric motor 29 has a drivingconnection with the carrier-belts 30'and-31ind'e pendent of the drivingv connections "of'the motor: 12 with the. sewingmachine and is suitably secured on a bracket 32' carried by the-frame l4, saidmotoribeing controlled by I the switch 33 located in the switch box'3 l. The conveyor-frame bracket 35 is'suitably secured to the conveyer-fram'e 14 and'provided with shaft-bearings 36 and 37 and 1 bracket-lug '38, and. intosaid bearingsis journaled thefric'tion-clutch driving shaft carrying the cup-shaped disk 41,-s'a'id pulley and disk being operative'ly connected, by belt 42, with the motor '29. 'A cone-shaped pulley 43 is suitably secured on the shaft 39 to ro- 100, 39 on which ismounted a loose pulley: 40 L' rection of the length of the latter. Upon the lug 38 is suitably fulcrumed a clutchadjusting bar 44 acting in opposition to the resiliency of the clutch spring 45 to, at the will of the operator and in a manner later to be explained, force said cone-disk into contact with the inner inclined surface 45 (shown in dotted lines only) of the disk 41, thus effecting power transmission from the motor 29 to the shaft 39.

A gear-shaft 46 is journaled in an upright position in the bearings 47 and 48 formed on the bracket 35 and at its upper end carries a beveled gear 49 meshing with a like gear member 50 carried by the shaft 39, said gear shaft being provided with a worm-gear 51 meshing with a gear member 52 fast on the shaft 53 journaled in the bearing 51 and in suitable bearings formed in the frame 14 and carrying the belt driving cylinder 54, provided with the rib 55 for directing the belts 30 and 31 in a given line of travel, a like cylinder 56 provided with a rib 55 being suitably journaled in the opposite end of the frame 14 and acting as an idler for the travel ofsaid belts, the latter supported between said cylinders by rollers, as 57, except as noted later.

A treadle rock-shaft 58 is journaled in suitable bearings formed in the bearing brackets, as 59, suitably secured upon the frame base and to the forward end of said shaft is suitably secured a bracket-arm 60 into which is suitably secured a treadle-rod 61 provided with a treadle member 62, and to resiliently hold said treadle mechanism in the position shown 1n the drawings, said rock-shaft hassuitably secured on it an arm 63 and a spring 64, the free end 65 of the latter bearing .on-the tie-piece 7 with its end 66 in contact with the arm 63, thus forcing the stop member 67 in contact with the tiepiece 7. A treadle shaft crank-arm 68 fast on the rock-shaft 58 and at its free end is linked to a chain connection 69 passing around an idler 69' and having its opposite end linked to an arm 70 projecting from a rocking standard 71 journaled at its oppo- 7 site ends in bearin -lu s as 7 2 one of which is suitably secured to the under side of the table-top and the other upon the tieepiece 5,

said rocking standard carrying a parallel bar 73 which, in practice, acts on the'lever 44 to move the clutch-member 43 in engagement with the disk 41.

-To adjust the conveyer frame to meet the requirements of sacks of varying sizes, there are threaded through the nuts 19 and 20 vertically arranged screw-threaded rods 74 andz75, respectively, having their upper ends journaled in suitable bearings, as 76,

(one only of which is shown, see Fig. 3)

carried by the standards 1 and 2, respectively, the upper ends of each of said rods being provided with a gear member, as 77,

respective crank-shafts, as 79 actuated,

through the crank-members, as 80, to effect the desired vertical adjustments of said conveyer-frame.

Referring now to the means employed for controlling the stitching operations, 81 repre sents a belt-shifting bracket suitably secured to the machine bracket 9 and provided with a lug 82upon the free end of which is pivotally mounted a belt-shifting lever 83 provided with belt-shifting fingers, as 84, a beltshifting weight 85, a brake-member 85 and a flexible connection supporting and directing element 86 the bracket 81 being provided with a flexible connection directing element 87 and a flexible connection supporting and directing element 88, the latter preferably secured against movement. The power-transmitting and arresting trip mechanism preferably comprises the bars 89 and 89 having their ends 90 connected with the trip-bar crank-arm 91 fast on one of the roller-rods, as 92, of the rollers 57, the rods being mounted to revolve on pintle screws, as 93, secured against accidental movement by the nuts, as 94, the opposite ends of the bars 89 and 89 being pivotally connected with 'the roller-rod crank-arm 96 fast on the roller-rod 97, which latter is journaled in suitable bearings formed in the frame 14 and at its inner end carries a flexible connection actuating crank-arm 98 linked to-one end of a flexible connection 99 which passes over he element 86, carried by the belt shifting lever 83, under the element 87 and over the element 88 mounted on the bracket 81, the opposite end of said flexible connection having attached to it a suspended weight 100 acting as a resistance member to the rocking movements of the crank-arm 98, the movements of the latter being limited in one di rection by the stop-rod 101 fast on the roller-rod 97 and stop finger 102 secured in the frame 14, the belt supporting rollers, 103, being of the same construction and support as the rollers 57 except that the latter comprise a two part construction of tubular wood to accommodate the action of the tripbar 89 8'9.

1n the operation of the present construction, the operator adjusts the electric switches 12 and 33 to start the motors 12 and 29, respectively. When the treadle mechanism (60, Gland 62) is adjusted to the left (see Fig. 1) which, through the connections pointed out, moves the rod 73 into contact with the power-transmitting clutchadjusting lever 44 acting on the cone-pulley 43 to engage the latter with the disk 41 and drive the shaft 39, which latter through the gear members 50, 49, 52 and cylinder 54, transmits motion to the carrier belts 30 and 31. The conveying mechanism now being inoperation the filled sack?) placed on the carrier belts in substantialy the position shown in dotted lines, Fig. 2,1and in its travel it contacts with and rides the trip-bar 89 which moves the latter downward into the space provided between the inner ends of the tubular wood pieces carried by the rollerro'ds 92, said movement of the trip-bar, through the crank-arm 9'8 and flexible-connection 99, acting to rock the belt-shifting lever 83, and through thebelt-shiftingfin gas 8%, shift said belt from the sewing machine loose pulley 105 tothe tight pulley 106, thus transmitting power to the commonly employed main-shaft (not shown} of the sewing'machine, theresistance member 100 holding said flexible connection insubstantially its normal or position of rest between said members and thedisk'99) As the sack is carried out of engagement with said tripbar the weight 85," carie d by the'belt-shifting lever. returns the belt 13 to said loose )ulle and moves the trip-bar to its normal or elevated position, followed by like operations and control for each subsequent conveying and-stitching operation. 1%"represent's a side guide bar forretaining the bags in their upright position as they are conveyed past.

the sewing machine head, 1

From the foregoing t is to be understood hatthere is a unitconstruction and drive p for carrying" the bags pastthe se, mg ma chine head and a second-unit of construcion and drive for effecting" and controlling the seam-formation, the--. former manually and the latter automatically controlled, said 7 1 automatic control insuring that only-such length of-s'eani ivill" be formed as is required to-close thev saelemouth;

There is employed in the present construction manually controlled thread-cutter,

substantially thesame as is illustrated in U.

S. Patent-E051, 156,821,0f @ctoher 12, 1915,

to A. Kendra-but assuchconst "notion forms no part of the present invention and iscommercially common it is not thought necessary to specifically" illustrate and describe the same as the patent above referred to, together withtheillustration of the shear-operating lever -1 ;OT 1(see:-Eigs, 1 and 2) is sufiicient' for understanding of its construction and application by those conversant with the art. 7

Having thus set forth the nature of the invention, what we claim herein is- 1. In a filled sack sewing apparatus, in

combination with seam-forming and sackconveylng mechanisms, and driving means for sand mechanisms, of work-controlled means for eifecting action and inaction of one of said mechanisms, and manually 0perable means for arresting the action of each of said mechanisms independently of the other mechanism. 7

2. In a filled sack sewing apparatus, seamforming mechanism, sacleconv'eying mecha nism,"driving means for each of "said mechanisms,- manually operated meansfor control ling'the sack-conveying driving-means, and work-controlled means for effecting action and; inaction of the seam-forming driving means permitting the continuanceof'an ini;

tiated scanning'operationduring the inacforming and sack conveying mechanisms and ,nieans including trip-mechanism located below the line of travel of the filled.

sack being acted on for automaticallyeffecb ing and for discontinuing the seam-forma tion, and manually operated means for con,

trolling the action and inaction of said con-.

veyer mechanism.

5. In a filled sack sewing apparatus, the combination with a sewing machine, a conveyer-fr'ame to receive the filled sacks, carrier-belts supported upon said frame and adapted to move a filled sack along the upper face ofs'aid frameand past the sewing machine, ofmeans including a trip-mochanism located belowthe line of travel of the filled. sack for automatically effecting and for discontinujin'gthe seam-formation.

6. In a filled sack sewing apparatus, the

combination with a sewing'rnachine, a conveyenframe to'receive the filled sacks, car- 'rier-beltssupported uponsaid frame and r 1 adapted to move a filled sack alongthe upper face of said frame and past the sewing machine, of means including a trap-mechanism located below the line of travel of the filled sack for automatically effecting and for discontinuing the seam-formation," together with means for relatively adjusting the sewing machine and frame to accommodatesaclis of varying sizes. I 1 7. Ina filled sack sewing apparatus, seamforming and sack-conveyingmechanisms, thelatter mechanism including a conveyerframe provided with a multiple of'carrierbelts and means, including a power transf m tting and arresting trip-mechanism, carried by said conveyer frame for automatically controlling the t1me and extent of seam-formation.

8; In a filled sack sewing apparatus, seamforming and sack-conveying mechanisms, the latter mechanism including a conveyerframe provided wlth a mult1pleof carrierbelts, :the former mechanism includinge" sewing machine provided with means di- 1 rectly connected wlth the latter for, at times,v

driving saidmachine, a power transmitting and arresting trip-mechanism carried by said conveyer-frame and connections for 0peratively connecting said trip-mechanism with said means for driving the sewing machine.

9. In a filled sack sewing machine apparatus, a sewing machine comprising a stitch forming mechanism and means for driving the same and a sack-conveying mechanism and means, independent of the former means, for driving said conveyer mechanism, the former means including a power transmitting and arresting trip-mechanism automatically controlled to effect and arrest the action of said stitch-forming mechanism, the latter means including twin belts for carrying filled sacks past the said sewing machine, one of said belts being located at one and the other at the opposite side of said trip-mechanism.

10. In a filled sack sewing apparatus, seam-forming and sack-conveying mechanisms, the latter mechanism including a conveyor-frame and carrier-belt, the former mechanism including a sewing machine provided with means directly connected with the latter for, at times, driving said machine and a power transmitting and arresting trip-mechanism carried by said conveyerframe and connections including a belt shifting lever and a flexible connection, the latter operative for a portion of its length to transmit rocking movements to said belt shifting lever, the balance of its length re maining substantially at rest for operatively connecting said trip-mechanism with said means for driving the sewing machine.

11. In a filled sack sewing apparatus, seam-forming and sack-conveying mechanisms, the latter mechanism including a conveyer-frame and carrier-belt, the former mechanism including a sewing machine provided with means directly connected with the latter for, at times, driving said machine and a power transmitting and arresting trip-mechanism carried by said conveyer-frame and connections including a belt shifting lever operatively connected with a flexible connection secured at one end to said trip-mechanism and at its opposite end to a resistance member for operatively connecting said trip-mechanism with said means for driving the sewing machine.

12. In a filled sack sewing apparatus, seam-forming and sack-conveying mechanisms, the latter mechanism including a conveyer-frame and carrier-belt, the former mechanism including a sewing machine pro vided with means directly connected with the latter for, at times, driving said machine and a power transmitting and arresting trip- I frame, a conveyer, and a trip-mechanism carried by said frame controlled by the travel of a filled sack to efi'ect and arrest seam-formation.

15. In a filled sack sewing machine, a stitch forming mechanism, a conveyerframe, a conveyer, a trip-mechanism carried by said frame controlled by the travel of a filled sack to efifect and arrest seam-formation, and manually operated means for controlling the action and inaction of said conveyer.

16. In a filled sack sewing machine, a stitch forming .mechanism, a conveyerframe, a conveyor, a trip-mechanism carried by said frame controlled by the travel of a filled sack to efi'ect and arrest seam-formation, and means for permitting a relative adjustment of the sewing machine and conveyer-frame to accommodate sacks of varying sizes.

In testimony whereof, we have signed our names to this specification.

FREELAND W. OSTROM. IRVING r. WEBB. 

